America/Cuiaba is an IANA time zone used in Brazil. It stays on UTC−4 all year.
America/Cuiaba at a glance
| UTC offset now | UTC−4 |
|---|---|
| Standard time | UTC−4 |
| Used in | Brazil |
How America/Cuiaba keeps time
America/Cuiaba has stayed on UTC−4 since its last daylight saving period in 2019. Software that still applies an old rule will show the wrong time, so keep tz data up to date.
Recent and upcoming changes in America/Cuiaba
| Date | Change | New offset |
|---|---|---|
| Sunday, October 15, 2017 | Clocks go forward 1 hour: 12:00 AM becomes 1:00 AM | UTC−3 |
| Saturday, February 17, 2018 | Clocks go back 1 hour: 12:00 AM becomes 11:00 PM | UTC−4 |
| Sunday, November 4, 2018 | Clocks go forward 1 hour: 12:00 AM becomes 1:00 AM | UTC−3 |
| Saturday, February 16, 2019 | Clocks go back 1 hour for good: 12:00 AM becomes 11:00 PM | UTC−4 |
Countries and cities on America/Cuiaba
America/Cuiaba is used in Brazil. These are the largest cities in our list that follow it.
America/Cuiaba compared with other time zones
Differences change during the year when one side moves to or from daylight saving time, so the table shows January and July separately.
| City | Time now | Difference now | In January | In July |
|---|---|---|---|---|
| New York (United States) | --:-- | 1 h behind | 1 h behind | Same time |
| Los Angeles (United States) | --:-- | 4 h behind | 4 h behind | 3 h behind |
| London (United Kingdom) | --:-- | 4 h ahead | 4 h ahead | 5 h ahead |
| Paris (France) | --:-- | 5 h ahead | 5 h ahead | 6 h ahead |
| Dubai (United Arab Emirates) | --:-- | 8 h ahead | 8 h ahead | 8 h ahead |
| Mumbai (India) | --:-- | 9 h 30 min ahead | 9 h 30 min ahead | 9 h 30 min ahead |
| Singapore | --:-- | 12 h ahead | 12 h ahead | 12 h ahead |
| Tokyo (Japan) | --:-- | 13 h ahead | 13 h ahead | 13 h ahead |
| Sydney (Australia) | --:-- | 15 h ahead | 15 h ahead | 14 h ahead |
| UTC | --:-- | 4 h ahead | 4 h ahead | 4 h ahead |
Other zones on UTC−4 right now
These IANA zones show the same time as America/Cuiaba today. Their clock-change rules may differ.
- America/Anguilla
- America/Antigua
- America/Aruba
- America/Barbados
- America/Boa_Vista
- America/Campo_Grande
- America/Caracas
- America/Curacao
- America/Dominica
- America/Glace_Bay
- America/Grenada
- America/Guadeloupe
Using America/Cuiaba in software
Use the zone name America/Cuiaba rather than an abbreviation or a fixed offset. Abbreviations can mean several zones, and offsets ignore future clock changes.
Show the current time in America/Cuiaba:
// JavaScript
new Intl.DateTimeFormat('en-GB', { timeZone: 'America/Cuiaba', timeStyle: 'long' }).format(new Date());
# Python
from datetime import datetime
from zoneinfo import ZoneInfo
datetime.now(ZoneInfo('America/Cuiaba'))
// PHP
(new DateTime('now', new DateTimeZone('America/Cuiaba')))->format('c');
# Shell
TZ=America/Cuiaba datePlan around the time in America/Cuiaba
- Convert a time to or from America/Cuiaba: pick a date and time and see it in every city on your list.
- Add Cuiabá to your world clock to keep it next to your own time.
- Find a meeting time that falls inside office hours in America/Cuiaba and the other cities you work with.
- Open a full-screen clock for your own time zone.
Frequently asked questions
What is the UTC offset of America/Cuiaba?
UTC−4, all year.
Time zone rules: IANA tz database, version 2026e. Place names and coordinates: GeoNames. Sunrise and sunset are calculated from the coordinates and can differ by a minute or two from local almanacs.